Will this work for RODI?

I am not in a position to where I can add an RODI system to our house....but don't want to have to go to the LFS to get RODI.....so I was wondering if this might work

I can get drinking water from our local "pure water" store. We use it for our main drinking water. I have a TDS meter and it registers "0" tds. If I were to get that water and then pump it thru a stand alone DI resin....would that be the same as an RODI system most of you have in your homes? My assumption is that there would be little to no rejection because it is already at zero TDS....and if it did go higher the DI resin would knock it down to zero effectively.

All I would need is the DI membrane, two buckets a pump to push the water from one bucket thru the DI membrane and into the other bucket. If this would work, what type / size of pump would I need to get to push the water up to 40-60 psi?

You could push external water through DI resin sure, as long as you do so slowly enough. At the resin part it's not a matter of pressure but contact time, so just make sure it's going as slow as it goes through the membrane, which is about 4gph.

Also not sure what is preventing you from adding an RODI system, but you can get a fitting that lets you screw onto a standard hose bib (outside) or onto your sink faucet. No drilling or tapping of pipes needed. Now if the issue isn't landlord related but significant other related, then I got no help for you

An old quote:“Stop using TDS as the measurement of water quality. Disinfection Byproducts like Trihalomethanes, Volatile Organic Compounds, METHYL tertiary-butyl ether, chlorine, chloramines, cysts and lead are the primary contaminants to Public Water Systems. They have no impact on the conductivity of the water. Yet these do not register on a TDS meter. And public water systems primarily supply from surface water that tends to have low TDS levels.” ( Water Conditioning & Purification Magazine, March 2009, page 42 )

So it is correct that 0 TDS likely does not need further "filtration".
But you need to neutralize the chlorine, and perhaps eliminate copper and lead.

An old quote:“Stop using TDS as the measurement of water quality. Disinfection Byproducts like Trihalomethanes, Volatile Organic Compounds, METHYL tertiary-butyl ether, chlorine, chloramines, cysts and lead are the primary contaminants to Public Water Systems. They have no impact on the conductivity of the water. Yet these do not register on a TDS meter. And public water systems primarily supply from surface water that tends to have low TDS levels.” ( Water Conditioning & Purification Magazine, March 2009, page 42 )

So it is correct that 0 TDS likely does not need further "filtration".
But you need to neutralize the chlorine, and perhaps eliminate copper and lead.

You can add chemicals to do that, or use carbon, or use DI. Or all 3.

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It would be good to test for those things first then. If they're not present then it saves you the hassle.